AEGISMAX Ultra Light Goose Down Sleeping Bag Mummy Down Sleeping Bag for Backpacking 800 Fill G400

I've had this bag for eleven months now and I absolutely love it. I've taken it on at five single-night backpacking trips ranging in all weather conditions from snowstorms to 85+ degrees nights and it's held up very well. I originally bought this bag for a backpacking trip I went on with a few buddies up in Desolation Wilderness in the beginning of January (the night got to about 26 degrees). I wore a pair of shorts and a shirt and I was so warm that I had to take my shirt off! This is an extremely warm bag that is still comfortable during nights in the later Spring and the down is of very high quality so the bag itself is very poofy, which I like because it feels more like a blanket. I'm 6'3, 110 pounds and it fits nicely; plenty of extra space lengthwise, even with the hood on, and a comfortable amount of room around the chest area. The only downside to this bag isn't the bag itself, I absolutely love it, however I do believe the provided stuff sack is far too small for the down. You can obviously get it in there eventually but it's difficult and quite a hassle, I would dread waking up just because this thing was so annoying to put away. It's much easier to put it into a sleeping bag compartment, and with that you can also stow your clothes. All in all this is an amazing, high quality sleeping bag for a great price (all of my equipment is on the cheaper side which is what I was going for) and I would highly recommend this to a friend.

Ultralight sleeping bag for backpacking. I took it out a few days ago on a camping trip. The temps at Chumash wilderness was at 27F . I would not recommend using it at this type of temperatures . I believe at 40 degrees F will be comfortable . I freezed my butt off but survived that night, but that’s my fault for being cheap. Overall, great sleeping bag and lightweight too. Aegismax G3 or G4 model is my best bet for cold nights.

Down fill seems high quality, could be 800 fill as advertised. The outer fabric seems pretty waterproof - a tight weave with coating. Pertex like? I suspect it will block wind well but may cause clamminess/wetness inside. Inner fabric seems comfortable. Zipper is light but seems fine. Stuff sack is decent quality and pretty light.I'm 6'1" 200 lbs and the Large is snug, but not restrictive and plenty long.

I bought this for backpacking. I'm 187cm (6'2"), 205 lbs (93kg), so I got the large, which was perfect. I immediately tested it out on our porch, which was -1°C (30°F) when I went to bed at 1am. I was wearing coolmax hiking socks, a fleece beanie hat, and a base layer. I was warm all night except for my face, which quickly adapted to the cold air. I tend to sleep warm so YMMV, but I feel confident about using this bag for the Vermont Long Trail in June, when it can still get down to freezing in the mountains. It's about half the weight of my Kelty Cosmic 20 Down bag and my back, knees, and feet are already thankful.Potential downsides:It's a fairly slim mummy. I'm fine but know what you like.It's a differential fill - 2/3 of the fill is in the top baffles, 1/3 in the bottom. If you toss and turn or sleep on your side, you might get a cold back. For back sleepers like me, a differential fill allows warmth for less weight since your back is insulated by a sleeping pad.The fabric is thin, which is a good thing for a backpacker saving weight, but know if you want something more rugged (and heavier). I didn't see any down pushing through.The down is untreated so it has no moisture resistance other than the water resistant shell fabric. I'm undecided if I prefer treated down. I've read reports that the treatment slightly hurts loft and warmth.It's a little hard to get the bag back in the 5-liter (just a guess) compression sack. The sack a nice extra which is usually not included with most sleeping bags. My family was shocked at how small the bag stuffs down. I may use a 7-liter that I already own or I may just stuff it into my backpack into the empty spaces (using a waterproof backpack liner, of course).The fabric face stays a little crinkled. I think they use the same shell for several levels of fill. Since this is the model with the least fill, the fabric looks slightly understuffed. I don't mind as I realize it's something that keeps production costs down and I'm buying this bag to avoid paying 2x as much for similar performance.With all those limitations in mind, I am ecstatic about getting such light weight and high performance for so little money! Someday, I imagine upgrading to a specialty product from a cottage vendor (like an EE Revelation quilt) but as someone who is newer to backpacking and on a budget, I'm overjoyed with this purchase!